AP2139AK-1.4TRG1

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The AP2139AK-1.4TRG1 is a low-power, low-noise, CMOS  linear regulator that integrates a power MOSFET to provide a complete system solution for noise-sensitive applications. It features high PSRR (Power Supply Rejection Ratio) and low-power consumption. This makes it ideal for portable and battery-powered applications.

The input voltage range is from 3.2V to 28V, and the output voltage is 1.4V. This makes it suitable for a variety of applications from 1.4V to 5V. It has an output current of up to 500mA, and a maximum frequency of 1.2MHz. The output voltage can be adjusted by varying the feedback voltage, with a minimum voltage reference of 1.15V (typical).

The AP2139AK-1.4TRG1 has a wide range of features that make it an ideal choice for noise-sensitive applications. It has a low quiescent current of 40uA, and a low noise output voltage of 40mV, with a 0.1% accuracy. It also has a thermal shutdown protection feature with a temperature range of -40°C to +85°C. The AP2139AK-1.4TRG1 comes in a small and lightweight package, making it ideal for applications where space is at a premium.

The AP2139AK-1.4TRG1 is designed to reduce power noise and simplify power supply design. It provides a low noise output voltage, a wide input voltage range, and low quiescent current. The wide input range and small package size makes it suitable for portable and battery powered devices. The feedback voltage is adjustable, allowing for precise output voltage regulation.

The AP2139AK-1.4TRG1 has a variety of application fields and can be used for various types of power management applications. It can be used for a range of portable applications such as smartphones, tablets, and notebooks. It can also be used for automotive and consumer electronics applications, including LCD TVs, cameras, and audio equipment. It can be used for industrial applications such as industrial test and measurement, embedded systems and medical equipment. It is also suitable for battery-based or energy harvesting applications.

The working principle of the AP2139AK-1.4TRG1 is based on a voltage fluctuation feedback loop. A voltage source is compared with the output of the regulator and the difference, or error signal, is then amplified by a MOSFET. This error signal is then used to adjust the on-time of the MOSFET, thereby controlling the output voltage. The AP2139AK-1.4TRG1 uses a current-mode operation that enables a fast response time and reduces output voltage ripple.

In addition to the low-noise output and adjustable output voltage range, the AP2139AK-1.4TRG1 also offers other features such as overload protection, short-circuit protection, and over-temperature protection. The wide operating temperature range and small size make it suitable for a variety of applications.

In conclusion, the AP2139AK-1.4TRG1 is a low-power, low-noise linear regulator for noise-sensitive applications. It offers a wide input voltage range and adjustable output voltage range, along with a fast response time and low-noise output voltage. It is suitable for a variety of applications, from portable devices to industrial systems, and has a range of features that enable protection and safe operation. Furthermore, its small size and wide operating temperature range make it an ideal choice for a variety of applications.

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